package cn.wolfcode.service.impl;

import cn.wolfcode.domain.Department;
import cn.wolfcode.mapper.DepartmentMapper;
import cn.wolfcode.qo.QueryObject;
import cn.wolfcode.service.DepartmentService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Collections;
import java.util.List;

@Service
public class DepartmentServiceImpl implements DepartmentService {

    @Autowired
    private DepartmentMapper departmentMapper;

    @Override
    public void delete(Long id) {
        departmentMapper.deleteByPrimaryKey(id);
    }

    @Override
    public void save(Department department) {
        departmentMapper.insert(department);
    }

    @Override
    public Department selectById(Long id) {
        Department department = departmentMapper.selectByPrimaryKey(id);
        return department;
    }

    @Override
    public List<Department> selectAll() {
        List<Department> departments = departmentMapper.selectAll();
        return departments;
    }

    @Override
    public void update(Department department) {
        departmentMapper.updateByPrimaryKey(department);

    }

    @Override
    public PageInfo<Department> query(QueryObject qo) {

/*        int count = departmentMapper.selectForCount(qo);
        if(count == 0){
            return new PageResult<>(qo.getCurrentPage(),qo.getPageSize(),count, Collections.emptyList());
        }*/


        PageHelper.startPage(qo.getCurrentPage(),qo.getPageSize());

        List<Department> departments = departmentMapper.selectForList(qo);
        return new PageInfo(departments);
    }
}
